Brass Foundry Zinc Ash
Ash generated in brass (copper-zinc alloy) foundry operations, containing mainly copper with zinc, classified in HTS 2620.30.00.30 for recovery of metals. Qualifies under Chapter 2620(b) for arsenic/metal extraction uses.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for molybdenum/ tungsten content
Different primary metal shifts to other specific slag types in 2620.
If melted into zinc alloys
Advanced processing to zinc-based alloys moves out of residues to Chapter 79.
If from antimony/lead processing
Origin from different metal manufacture changes heading within Chapter 26.
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Import Tips & Compliance
• Include foundry process documentation to prove non-iron/steel origin per hierarchy
• Quantify zinc via assay for statistical reporting; inaccuracies lead to penalties
• Segregate from municipal ash to prevent shift to heading 2621
Related Products under HTS 2620.30.00.30
Copper Smelter Zinc Slag
Residue from copper smelting processes containing primarily copper with significant zinc content, classified under HTS 2620.30.00.30 due to its metal compounds and use in metal recovery. It meets Chapter 2620 notes as slag used for extracting metals like zinc and copper.
Leaching Residue with Zinc Content
Ash-like residue from hydrometallurgical leaching of copper ores, mainly copper with zinc compounds, under HTS 2620.30.00.30 for its metal recovery applications. Fits heading 2620 as industrial residue for chemical compound manufacture.
Copper Electrolysis Zinc Residue
Residues from copper electrolysis containing zinc impurities, mainly copper matrix, under HTS 2620.30.00.30 for industrial metal reclamation. Aligns with Chapter 2620 for residues used in compound production.
Secondary Copper Zinc Skimmings
Skimmings from secondary copper recycling with zinc content, primarily copper-based, in HTS 2620.30.00.30 for metal extraction. Excluded from iron/steel per hierarchy and used industrially.
Roasted Copper-Zinc Flue Dust
Flue dust from roasting copper concentrates with zinc, mainly copper, under HTS 2620.30.00.30 as arsenic/metal residue for recovery. Chapter 2620 applies for industrial chemical uses.
Galvanizing Plant Zinc Slag
Slag from copper-zinc galvanizing operations, copper-main with zinc, HTS 2620.30.00.30 for metal compound basis. Industrial use qualifies per Chapter 2620(a).